286155
Which component of respiratory system displays the features given below?
1 Visceral layer
2 Peritoneal cavity
3 Visceral organs
4 Pleura
Explanation:
(d) Humans have a pair of lungs each of which is covered by a double layered membrane called as pleura. It is filled with pleural fluid between them. Pleural fluid reduces the friction on the lung surface. The outer pleural membrane is in close contact with the thoracic lining whereas the inner pleural membrane is in the contact with the lung surface.
NCERT Page-269 / N-184
BREATHING and EXCHANGE OF GASES(NCERT)
286156
Arrange the given steps of respiration in the sequence of their occurence.
1 (iv)-(i)-(ii)-(v)-(iii)
2 (iii)-(ii)-(v)-(i)-(iv)
3 (v)-(iv)-(iii)-(ii)-(i)
4 (i)-(ii)-(iii)-(iv)-(v)
Explanation:
(a) The correct sequence of the events of respiration is - (iv)-(i)-(ii)-(v)-(iii).
Major steps involved in respiration are:
Step 1: $\text{C}{{\text{O}}_{2}}$ goes out and atmospheric air is drawn in. Step 2: Diffusion of gases $\left( {{\text{O}}_{2}} \right.$ and $\left. \text{C}{{\text{O}}_{2}} \right)$ through alveolar membrane.
Step 3: Transportation by blood.
Step 4: Diffusion of ${{\text{O}}_{2}}$ and $\text{C}{{\text{O}}_{2}}$ between blood and tissues.
Step 5: Utilisation of ${{\text{O}}_{2}}$ by cells for catabolic reactions.
NCERT Page-272 / N-187
BREATHING and EXCHANGE OF GASES(NCERT)
286148
Statement I: The volume of air involved in the breathing movements can be estimated by spirometer.
Statement II: Diaphragm is very useful in both inspiration and expiration.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(d)
NCERT Page-270 & $271/$ N-185
BREATHING and EXCHANGE OF GASES(NCERT)
286149
Statement I: The $\text{pC}{{\text{O}}_{2}}$ level at the tissue is high due to catabolism.
Statement II: At the alveolar site, $\text{pC}{{\text{O}}_{2}}$ is low due to which $\text{C}{{\text{O}}_{2}}$ and ${{\text{H}}_{2}}\text{O}$ are formed.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
286155
Which component of respiratory system displays the features given below?
1 Visceral layer
2 Peritoneal cavity
3 Visceral organs
4 Pleura
Explanation:
(d) Humans have a pair of lungs each of which is covered by a double layered membrane called as pleura. It is filled with pleural fluid between them. Pleural fluid reduces the friction on the lung surface. The outer pleural membrane is in close contact with the thoracic lining whereas the inner pleural membrane is in the contact with the lung surface.
NCERT Page-269 / N-184
BREATHING and EXCHANGE OF GASES(NCERT)
286156
Arrange the given steps of respiration in the sequence of their occurence.
1 (iv)-(i)-(ii)-(v)-(iii)
2 (iii)-(ii)-(v)-(i)-(iv)
3 (v)-(iv)-(iii)-(ii)-(i)
4 (i)-(ii)-(iii)-(iv)-(v)
Explanation:
(a) The correct sequence of the events of respiration is - (iv)-(i)-(ii)-(v)-(iii).
Major steps involved in respiration are:
Step 1: $\text{C}{{\text{O}}_{2}}$ goes out and atmospheric air is drawn in. Step 2: Diffusion of gases $\left( {{\text{O}}_{2}} \right.$ and $\left. \text{C}{{\text{O}}_{2}} \right)$ through alveolar membrane.
Step 3: Transportation by blood.
Step 4: Diffusion of ${{\text{O}}_{2}}$ and $\text{C}{{\text{O}}_{2}}$ between blood and tissues.
Step 5: Utilisation of ${{\text{O}}_{2}}$ by cells for catabolic reactions.
NCERT Page-272 / N-187
BREATHING and EXCHANGE OF GASES(NCERT)
286148
Statement I: The volume of air involved in the breathing movements can be estimated by spirometer.
Statement II: Diaphragm is very useful in both inspiration and expiration.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(d)
NCERT Page-270 & $271/$ N-185
BREATHING and EXCHANGE OF GASES(NCERT)
286149
Statement I: The $\text{pC}{{\text{O}}_{2}}$ level at the tissue is high due to catabolism.
Statement II: At the alveolar site, $\text{pC}{{\text{O}}_{2}}$ is low due to which $\text{C}{{\text{O}}_{2}}$ and ${{\text{H}}_{2}}\text{O}$ are formed.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
286155
Which component of respiratory system displays the features given below?
1 Visceral layer
2 Peritoneal cavity
3 Visceral organs
4 Pleura
Explanation:
(d) Humans have a pair of lungs each of which is covered by a double layered membrane called as pleura. It is filled with pleural fluid between them. Pleural fluid reduces the friction on the lung surface. The outer pleural membrane is in close contact with the thoracic lining whereas the inner pleural membrane is in the contact with the lung surface.
NCERT Page-269 / N-184
BREATHING and EXCHANGE OF GASES(NCERT)
286156
Arrange the given steps of respiration in the sequence of their occurence.
1 (iv)-(i)-(ii)-(v)-(iii)
2 (iii)-(ii)-(v)-(i)-(iv)
3 (v)-(iv)-(iii)-(ii)-(i)
4 (i)-(ii)-(iii)-(iv)-(v)
Explanation:
(a) The correct sequence of the events of respiration is - (iv)-(i)-(ii)-(v)-(iii).
Major steps involved in respiration are:
Step 1: $\text{C}{{\text{O}}_{2}}$ goes out and atmospheric air is drawn in. Step 2: Diffusion of gases $\left( {{\text{O}}_{2}} \right.$ and $\left. \text{C}{{\text{O}}_{2}} \right)$ through alveolar membrane.
Step 3: Transportation by blood.
Step 4: Diffusion of ${{\text{O}}_{2}}$ and $\text{C}{{\text{O}}_{2}}$ between blood and tissues.
Step 5: Utilisation of ${{\text{O}}_{2}}$ by cells for catabolic reactions.
NCERT Page-272 / N-187
BREATHING and EXCHANGE OF GASES(NCERT)
286148
Statement I: The volume of air involved in the breathing movements can be estimated by spirometer.
Statement II: Diaphragm is very useful in both inspiration and expiration.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(d)
NCERT Page-270 & $271/$ N-185
BREATHING and EXCHANGE OF GASES(NCERT)
286149
Statement I: The $\text{pC}{{\text{O}}_{2}}$ level at the tissue is high due to catabolism.
Statement II: At the alveolar site, $\text{pC}{{\text{O}}_{2}}$ is low due to which $\text{C}{{\text{O}}_{2}}$ and ${{\text{H}}_{2}}\text{O}$ are formed.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
286155
Which component of respiratory system displays the features given below?
1 Visceral layer
2 Peritoneal cavity
3 Visceral organs
4 Pleura
Explanation:
(d) Humans have a pair of lungs each of which is covered by a double layered membrane called as pleura. It is filled with pleural fluid between them. Pleural fluid reduces the friction on the lung surface. The outer pleural membrane is in close contact with the thoracic lining whereas the inner pleural membrane is in the contact with the lung surface.
NCERT Page-269 / N-184
BREATHING and EXCHANGE OF GASES(NCERT)
286156
Arrange the given steps of respiration in the sequence of their occurence.
1 (iv)-(i)-(ii)-(v)-(iii)
2 (iii)-(ii)-(v)-(i)-(iv)
3 (v)-(iv)-(iii)-(ii)-(i)
4 (i)-(ii)-(iii)-(iv)-(v)
Explanation:
(a) The correct sequence of the events of respiration is - (iv)-(i)-(ii)-(v)-(iii).
Major steps involved in respiration are:
Step 1: $\text{C}{{\text{O}}_{2}}$ goes out and atmospheric air is drawn in. Step 2: Diffusion of gases $\left( {{\text{O}}_{2}} \right.$ and $\left. \text{C}{{\text{O}}_{2}} \right)$ through alveolar membrane.
Step 3: Transportation by blood.
Step 4: Diffusion of ${{\text{O}}_{2}}$ and $\text{C}{{\text{O}}_{2}}$ between blood and tissues.
Step 5: Utilisation of ${{\text{O}}_{2}}$ by cells for catabolic reactions.
NCERT Page-272 / N-187
BREATHING and EXCHANGE OF GASES(NCERT)
286148
Statement I: The volume of air involved in the breathing movements can be estimated by spirometer.
Statement II: Diaphragm is very useful in both inspiration and expiration.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(d)
NCERT Page-270 & $271/$ N-185
BREATHING and EXCHANGE OF GASES(NCERT)
286149
Statement I: The $\text{pC}{{\text{O}}_{2}}$ level at the tissue is high due to catabolism.
Statement II: At the alveolar site, $\text{pC}{{\text{O}}_{2}}$ is low due to which $\text{C}{{\text{O}}_{2}}$ and ${{\text{H}}_{2}}\text{O}$ are formed.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
